Shrink Fit Tool Holder and Adapter, Hole Dia. 20.00mm, Taper Size CVKV50, Shank Dia. 33.00mm, Projection 101.60mm, Nose Dia. 33.00mm, Coolant Fed Coolant Through, Balanced to RPM G 2.5@15000 rpm, For Use With Carbide and HSS Tools, Series HSK63A